How to Close a Vertical Spread Early
Summary
Most vertical spreads should be closed before expiration. Closing early locks in profits, avoids pin risk and assignment, and frees capital for new trades. This guide covers when to exit, how to execute the closing order, and the specific rules for credit and debit spreads.
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New traders often assume they should hold vertical spreads until expiration to "get all the profit." In practice, holding to expiration increases risk without proportional reward. The last 20% of a credit spread's profit takes the same amount of time as the first 80% but carries substantially more gamma and assignment risk.
When to Close Credit Spreads
At 50% of max profit. This is the most widely used exit rule for credit spreads, and for good reason. If you sold a spread for $2.00 credit, close it when you can buy it back for $1.00. You've captured $100 per contract.
Why 50%? Research from multiple sources shows that closing credit spreads at 50% of max profit improves risk-adjusted returns compared to holding to expiration. You free capital 2-3 weeks early, reduce exposure to tail events, and can redeploy that capital into a new trade.
At 21 days to expiration (if not yet at target). Even if you haven't hit 50% profit, consider closing at 21 DTE if you entered with 45 DTE. Gamma risk increases rapidly inside 21 days, meaning small stock moves cause large P&L swings.
When the spread doubles in value (stop loss). If you sold for $2.00 and it's now worth $4.00, the trade has gone firmly against you. Close and preserve capital. Hoping for a reversal from this point has a low probability of success.
When to Close Debit Spreads
At 50-75% of max profit. If you bought a $5-wide bull call spread for $2.00, it's worth $3.50-$4.00 when you've captured 75% of max. Close it. The last $1.00-$1.50 requires the stock to sit exactly at or above your short strike at expiration—a low-probability event.
When your thesis changes. If you entered a bull call spread because earnings looked strong, and the company issued a profit warning, close immediately regardless of P&L.
At 50% of max loss. If your $2.00 debit spread drops to $1.00, you've lost 50% of your investment. Closing here preserves capital. The remaining $1.00 of value decays quickly as time passes.
How to Execute the Close
Close as a spread, not individual legs. Your broker allows you to close both legs as a single order:
Use limit orders. Never use market orders on spreads. The market maker will fill you at the worst possible price on both legs. Set a limit order at the mid-price and wait. If it doesn't fill in a few minutes, adjust by $0.01-$0.05 toward the natural side.
Watch the bid-ask spread. If the option bid-ask is $0.20 wide on each leg, the spread bid-ask could be $0.40 wide. That's significant on a $2.00 spread. Trade liquid underlyings to minimize this friction.
The Danger of Holding to Expiration
Pin risk. If the stock closes at exactly your short strike on expiration day, you don't know whether you'll be assigned. The stock might trade above the strike in after-hours trading, resulting in surprise assignment.
Assignment cost. If assigned on your short option, you temporarily hold shares (or short shares) until your long option is exercised or you take manual action. This can require significant buying power and may result in margin calls.
After-hours movement. Options settle based on the closing price, but stocks can move 1-2% in after-hours trading. You might assume your spread expired worthless at 4:00 PM only to get assigned at 5:30 PM because the stock moved.
A Systematic Exit Framework
Build a plan before entering any spread:
Set alerts in your broker platform or use OptionsPilot to track your open positions against these exit criteria. Mechanical exits remove emotion and prevent small losses from becoming large ones.